8640354292 has 12 divisors (see below), whose sum is σ = 15122505636. Its totient is φ = 4319638400.

The previous prime is 8640354263. The next prime is 8640354319. The reversal of 8640354292 is 2924530468.

It can be written as a sum of positive squares in 2 ways, for example, as 6849879696 + 1790474596 = 82764^2 + 42314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97459 + ... + 163642.

It is an arithmetic number, because the mean of its divisors is an integer number (1260208803).

Almost surely, 2^8640354292 is an apocalyptic number.

It is an amenable number.

8640354292 is a deficient number, since it is larger than the sum of its proper divisors (6482151344).

8640354292 is a wasteful number, since it uses less digits than its factorization.

8640354292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269378 (or 269376 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 8640354292 is about 92953.5060769630. The cubic root of 8640354292 is about 2051.9991833508. Note that the first 3 decimals are identical.

The spelling of 8640354292 in words is "eight billion, six hundred forty million, three hundred fifty-four thousand, two hundred ninety-two".